misc changes

Signed-off-by: Dearshor Xue <dearshor@gmail.com>
resolved conflict in .gitignore; added README.md

Signed-off-by: Dearshor Xue <dearshor@gmail.com>
fixed the test case, now all tests can pass

Signed-off-by: Dearshor Xue <dearshor@gmail.com>
trun to use java-based config.

Signed-off-by: Dearshor Xue <dearshor@gmail.com>
changed to use spring factoryBean's getObject() method to renturn instance of factoryBean instand of factoryBean itself.

Signed-off-by: Dearshor Xue <dearshor@gmail.com>
deleted unused files.

Signed-off-by: Dearshor Xue <dearshor@gmail.com>
Merge branch 'dearshor/use-hibernate-entitymanager-for-jpa-providor'

* dearshor/use-hibernate-entitymanager-for-jpa-providor:
  deleted unused files.
  changed to use spring factoryBean's getObject() method to renturn instance of factoryBean instand of factoryBean itself.
  trun to use java-based config.
  fixed the test case, now all tests can pass
  misc changes